topic View cone setting from lens field of view in Visualization

View cone setting from lens field of view

Anonymous — Thu, 11 May 2023 13:36:10 GMT

I want to do a photomontage of a cad model. The lens of the photo have three different field of views: horisontal, vertical and diagonal. Which one should I use for inserting correct value in the "view cone" setting?

Re: View cone setting from lens field of view

Erwin Edel — Tue, 29 Sep 2015 10:26:07 GMT

Maybe this will help:
http://helpcenter.graphisoft.com/guides/archicad-19-int-reference-guide/visualization-2/visualization-extras/align-view/
http://helpcenter.graphisoft.com/tips/align-view/

Remember that things like lens distortion etc do no exist in ArchiCAD So alligning things perfectly is hard to achieve.

Personally I prefer eyeballing it with a wire model and the photo as background for the 3d window.

Or just modelling the barest suggestion of surroundings and not bother with the hassle of montage, but that is not what your are looking for.

Best of luck!

Re: View cone setting from lens field of view

Anonymous — Tue, 29 Sep 2015 10:40:32 GMT

Thanks Erwin,

Seems like good options but I still need to know what view cone settings should be in my application.

Anyone out there who could help me?

Re: View cone setting from lens field of view

Erwin Edel — Tue, 29 Sep 2015 12:27:30 GMT

Right, sorry. The camera angle in ArchiCAD corresponds to the horizontal angle of a camera lense.

https://en.wikipedia.org/wiki/Angle_of_view here are some tables you can use to get close to your lens (24 mm for example is about 74 degrees, 35 mm is about 54 degrees and pretty close to human eye as I recall).

Re: View cone setting from lens field of view

Anonymous — Tue, 29 Sep 2015 13:21:22 GMT

Great, thanks!